Magnetic Substrate Cutting Device for Direction Control

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Solution Overview

Problem

The existing cutting devices for substrates in display device manufacturing often suffer from damage to the substrate or the cutting wheel due to insufficient space for wheel turning, leading to inadequate cutting processes.

Innovation Solution

A cutting device with upper and lower cutting portions, each equipped with movable head portions, holders, and cutting wheels, utilizing magnetic substances with opposite polarities to induce rotation and facilitate cutting without the need for additional space for wheel turning, allowing for precise control of cutting wheel direction and substrate cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the cutting wheel is turned to change cutting direction, then the cutting direction can be changed, but additional space is required for wheel turning which is insufficient in narrow designs

Engineering Contradiction:
Improvecutting direction change capabilityVSAvoidspace for wheel turning
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent replaces the mechanical wheel turning mechanism with a magnetic field-based rotation control system. Magnetic substances with opposite polarities are positioned to generate magnetic fields that induce rotation of the cutting wheel in desired directions, eliminating the need for physical wheel turning space while maintaining cutting direction change capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic substances as an intermediary between the control system and the cutting wheel. These magnetic substances generate magnetic fields that mediate the rotation of the cutting wheel, allowing direction control without direct mechanical intervention or additional spatial requirements for wheel manipulation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the cutting wheel is not appropriately arranged due to insufficient turning space, then the cutting process can proceed, but the substrate or cutting wheel may be damaged

Engineering Contradiction:
Improvecutting process continuityVSAvoidsubstrate and cutting wheel integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

By substituting mechanical wheel turning with magnetic field-induced rotation, the system eliminates the risk of damage associated with forced wheel turning in confined spaces. The magnetic field approach allows smooth, controlled rotation without mechanical constraints that could damage the substrate or cutting wheel during direction changes

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Prevents substrate and cutting wheel damage by enabling precise cutting direction changes without additional space for wheel turning, ensuring efficient and quality-oriented cutting processes.

Implementation Method 1

utilizing magnetic substances with opposite polarities to induce rotation

Methodology Applied
Scientific EffectMagnetic field interaction: Magnetic Field

Implementation Method 2

including a magnetic substance... and including a magnetic substance

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS12083697B2Cutting device and method for cutting substrate using the same
Publication Date: 2024.09.10 SAMSUNG DISPLAY CO LTD
  • US12083697B2 patent drawing
  • US12083697B2 patent drawing
  • US12083697B2 patent drawing

AI summary

A cutting device includes an upper cutting portion and a lower cutting portion. The upper cutting portion includes an upper head portion movable in a first and a second direction, an upper holder connected to the upper head portion, and an upper cutting wheel connected to the upper holder. The upper holder includes an upper body portion connected to the upper head portion, an upper cutting wheel fixing portion rotatable with respect to the upper body portion, and an upper magnetic portion disposed on sides of the upper cutting wheel fixing portion including a magnetic substance. The lower cutting portion includes a lower head portion movable in the first and the second direction, a lower holder connected to the lower head portion, a lower cutting wheel connected to the lower holder, and an upper holder rotation inducing portion connected to the lower head portion including a magnetic substance.